1 The sentences for each crime are then tacked on to each other, so that each sentence begins immediately upon the expiration of the previous one. 2  A deferred sentence occurs when its execution is postponed until some later time. 3  A determinate sentence is the same as a fixed sentence: It is for a fixed period of time.
Steamboats. In 1807, Robert Fulton launched the world's first steamboat. It could move a boat against the current in a river by a large paddle wheel that turned in the water. The paddle wheel attached to the back of the boat was powered by a steam engine aboard the boat.teamboats. In 1807, Robert Fulton launched the world's first steamboat. It could move a boat against the current in a river by a large paddle wheel that turned in the water. The paddle wheel attached to the back of the boat was powered by a steam engine aboard the boat.
1769 James Watt improves the steam engine. James Watt from Scotland designs a more efficient steam engine. One of the most important inventions of the Industrial Revolution, steam engines power the first trains, steamboats, and factories. 1794 Eli Whitney patents the cotton gin. Eli Whitney creates a machine that makes it much easier to separate cotton seeds from cotton fiber.